CN112770933A

CN112770933A - Seat device and vehicle

Info

Publication number: CN112770933A
Application number: CN201980060822.XA
Authority: CN
Inventors: M·拉维斯坦; J·拉思
Original assignee: Daimler AG
Current assignee: Mercedes Benz Group AG
Priority date: 2018-09-21
Filing date: 2019-09-17
Publication date: 2021-05-07
Also published as: DE102018007523A1; DE102018007523B4; WO2020058260A1; US20210347285A1; US11453315B2

Abstract

The invention relates to a seat arrangement (1), in particular a vehicle seat arrangement, comprising a seat cushion (2) having a cushion front side (2.1) extending in a transverse direction (y) of the seat arrangement (1) and a cushion rear side (2.2) extending in the transverse direction (y) of the seat arrangement (1), and a backrest (4) having two opposite backrest edge sides (4.1,4.2) extending in the transverse direction (y) of the seat arrangement (1), wherein the backrest (4) can be placed on the cushion front side (2.1) and the cushion rear side (2.2) of the seat cushion (2) in order to change a seat direction (SR). For changing the seat direction (SR), the backrest (4) is mounted so as to be rotatable by at least 180 DEG about a transverse axis (QA). Furthermore, at least one headrest unit (5) is displaceably arranged on the backrest (4) in such a way that it can be moved beyond the respective backrest edge side (4.1,4.2) facing away from the seat cushion (2) and can be moved back under the backrest edge side (4.1, 4.2). The invention also relates to a transport means.

Description

Seat device and vehicle

The invention relates to a seat arrangement and a vehicle according to the features of the preamble of claim 1.

From the prior art, as described in US 6,715,825B 2, a seat arrangement for use in a motor vehicle is known which is adjustable to a plurality of positions. The seat device includes a seat cushion and a backrest. The seat cushion and the backrest are supported on the vehicle floor by a pair of seat support beams. The seat cushion includes a front portion and an opposing rear portion. The backrest comprises an upper part and a lower part arranged on the seat cushion. The seating unit can be positioned in a plurality of upright and flat positions. It includes a pair of links for positioning the seat unit in a forward or rearward upright seat position or in a first or second flat position. In the flat position, the backrest extends horizontally from the front of the seat cushion or from the rear of the seat cushion.

The invention is based on the object of specifying a seat arrangement which is improved in relation to the prior art and a vehicle which is improved in relation to the prior art.

According to the invention, this object is achieved by a seat arrangement having the features of claim 1 and a vehicle having the features of claim 9.

Advantageous embodiments of the invention are the subject matter of the dependent claims.

A seat arrangement, in particular for a vehicle, comprises a seat cushion having a seat cushion front side extending in the transverse direction of the seat arrangement and a seat cushion rear side extending in the transverse direction of the seat arrangement, and a backrest having two opposite backrest edge sides each extending in the transverse direction of the seat arrangement, wherein the backrest can be arranged on the seat cushion front side and on the seat cushion rear side of the seat cushion for changing the seat orientation. That is, the backrest is disposed at the front side of the seat cushion or at the rear side of the seat cushion depending on the direction of the seat. The backrest is mounted so as to be rotatable about a transverse axis by at least 180 ° in order to change the seat orientation. The backrest thus has a backrest front side provided for the passenger to lean against and a backrest rear side facing away from it, against which the passenger is not to lean against, wherein the backrest can be mounted so as to be pivotable about a transverse axis for changing the seat direction in such a way that the backrest front side is oriented in the seat direction, i.e. towards the seat cushion, whether the backrest is arranged on the seat cushion front side or on the seat cushion rear side of the seat cushion. According to the invention, at least one headrest unit is displaceably arranged on the backrest such that the headrest unit is displaceable beyond the respective backrest edge side facing away from the seat cushion and can be displaced back below this backrest edge side.

The seat arrangement can be designed as a single-person seat or as a multi-person seat, i.e. in the form of a single seat with only one seat, in particular a single vehicle seat, i.e. provided for only one passenger, or in the form of a multi-row seat with a plurality of seats, in particular a multi-vehicle seat, i.e. provided for a plurality of passengers sitting side by side.

The seat arrangement can be designed, for example, as a front or rear seat or row of seats of the vehicle, i.e. arranged in accordance with the first, second or further rows of seats of the vehicle. The vehicle may have one or more such seating arrangements, for example.

The solution of the invention provides a flexible seating concept which is advantageous, for example, for vehicles which are capable of performing autonomous driving operations. For example, provision is made for the seat arrangement to be used by a driver who, for example, must sometimes sit in the direction of travel of the vehicle in order to maneuver the vehicle, but can sometimes also be in a different seat direction, for example facing other passengers, in particular during automatic driving operation. This is achieved in a simple manner by the seat arrangement according to the invention in that the backrest is rotated by at least 180 ° from a position disposed behind the seat cushion and is disposed in front of the seat cushion, whereby an opposite seat direction, in the example described, thus a seat direction oriented opposite to the driving direction, is achieved. Naturally, the seat orientation can also be switched back accordingly.

Another advantageous application of the solution of the invention is, for example, in autonomous vehicles, which can be used in various ways. If the vehicle is used, for example, in a so-called sharing mode, in which the vehicle is shared by a plurality of persons who are not acquainted with each other and who are driving along a given route on which the vehicle is traveling, a privacy atmosphere as much as possible can be obtained, in which all persons are seated in the same seat direction and therefore do not face each other. If the means of conveyance is, for example, privately rented, also referred to as a private mode, it is likely that most of the people acquainted with each other will want to sit facing each other in order to be able to better communicate and/or interact with each other. For this purpose, the seat orientation can be changed simply by the solution according to the invention, so that people in the vehicle can sit facing each other.

The solution of the invention thus allows a flexible seat arrangement, the seat orientation of which can be changed, for example, according to the respective number of persons in the vehicle and their respective needs. In the seat arrangement according to the invention, two opposite seat directions are integrated, so that no additional components are required, no replacement of components is required, and the entire seat arrangement does not have to be disassembled and mounted on the contrary. Hereby also a higher safety will be obtained, since there is no need to loosen the seat arrangement and fasten it again on the vehicle, whereby the risk of an incorrect fastening on the vehicle is avoided. The solution of the invention is therefore extremely compact, inexpensive to manufacture and operate, and comparatively light, and its weight is for example no more or only slightly higher than that of a common vehicle seat.

Advantageously, only one headrest unit is provided for each seat, in the case of a seat arrangement in the form of a single-person seat, correspondingly only one headrest unit is provided, and in the case of a seat arrangement in the form of a multi-person seat, one headrest unit is provided for each seat. The headrest unit is then moved upwards beyond the respective backrest edge side facing away from the seat cushion as a function of the set seat direction and thus as a function of the respective orientation of the backrest. During a change of seat direction, the headrest unit is correspondingly retracted, and after a reorientation of the backrest on the seat cushion has been effected, the headrest unit is moved upwards beyond the other backrest edge side which now faces away from the seat cushion.

Alternatively, a headrest unit can be provided for the respective seat on each of the two backrest edge sides, which headrest unit can be pushed towards the backrest below the backrest edge side, for example into the backrest, when the backrest edge side faces the seat cushion.

The backrest is in particular mounted rotatably on two lateral pivot arms, wherein the backrest can be pivoted about a transverse axis, and the transverse axis can be pivoted by means of the pivot arms toward the front side or toward the rear side of the seat cushion. The pivoting backrest is thereby moved in a simple manner from the front side of the seat cushion to the rear side of the seat cushion or vice versa.

In one possible embodiment, the length of the swing arm is variable. This makes it possible in particular to adjust the backrest inclination angle of the backrest.

In one possible embodiment, the seat cushion inclination angle of the seat cushion is adjustable. In this way, the seat cushion inclination angle can be adjusted, in particular, depending on the arrangement of the backrest on the front side or on the rear side of the seat cushion, so that the respective seat cushion side on which the backrest is located is arranged, for example, slightly deeper than the respective other side of the seat cushion.

By adjusting the seat cushion angle and/or the backrest angle, a convenient and ergonomic seat arrangement can be achieved, in particular for each set seat direction.

In one possible embodiment, the seat arrangement has at least one pivotable armrest. This increases the comfort for the passenger, in which case only one armrest is required, or only one armrest for each arm of the passenger, since the armrests are pivotable and can thus be pivoted to be adapted to the orientation and positioning of the backrest. For example, the armrest may be pivotally mounted on the backrest or on a swing arm.

In one possible embodiment, the seat arrangement has at least one three-point seat belt arrangement with two buckles. With the three-point seat belt arrangement, the safety of the passenger is optimized and/or the corresponding safety regulations of the passenger are met. By means of these two buckles, depending on the arrangement and orientation of the backrest on the front side of the seat cushion or on the rear side of the seat cushion, the locking tongue can be latched into the buckles located in the seat cushion region and the backrest region, respectively, in order to adapt the seat belt to the three-point course of a conventional three-point seat belt, i.e. with a belt section and a shoulder belt section.

The buckles are arranged, for example, in each case in a corresponding region of one of the backrest edge sides of the backrest, so that one of the two buckles is always positioned in the seat cushion region depending on the positioning and orientation of the backrest on the seat cushion front side or on the seat cushion rear side.

In another embodiment, for example, one of the buckles is disposed in the seat cushion front side region and the other buckle is disposed in the seat cushion rear side region. In this case, buckles are used in the area of which the backrest is positioned according to the respective seat direction set. That is, if the backrest is placed on the rear side of the seat cushion, the buckle in the rear side region of the seat cushion is employed, and if the backrest is placed on the front side of the seat cushion, the buckle in the front side region of the seat cushion is employed.

In a solution where the buckle is placed in or on the seat cushion, the buckle is advantageously arranged such that the passenger does not have to sit on one of said buckles and is thereby disturbed thereby. This risk can be at least substantially ruled out by the solution described above, i.e. by arranging the buckle in or on the backrest in the region of the respective backrest edge side.

The vehicle according to the invention comprises at least one such seat arrangement. The advantages obtained thereby are as described above. It is particularly advantageous if the vehicle is an autonomous vehicle or a vehicle which is operated at least at times in an autonomous mode. The seat arrangement is located, for example, in a front seat or a rear seat, i.e., for example, a second seat, a third seat or other seats. When arranged in a front seat, the seat arrangement may form, for example, a driver's seat or a passenger seat, or in a fully-autonomous vehicle, a common passenger seat.

With the solution described, the seat direction and thus the orientation of the passenger in the vehicle can be changed simply while the number of seats remains unchanged. In order to be able to enter and leave the vehicle when the seat arrangement is arranged in one of the seat directions and in the opposite seat direction, the vehicle advantageously has a correspondingly large door opening or a plurality of such door openings. This can be achieved particularly advantageously, for example, with sliding doors or wing doors or conventional vehicle doors which can be pivoted to a large extent, i.e. vehicle doors which rotate about a vertical door axis.

The seat arrangement can be designed, for example, as a single-person seat or as a multi-person seat, i.e., for example, as a single seat or as a chair row.

In one possible embodiment, the seating arrangement is movably mounted on the vehicle floor. This also enables the leg range of motion to be adjusted, in particular when the seat direction is changed. Particularly when the seat directions are adjusted so that the passengers face each other, the passengers can obtain a sufficiently large leg movement range.

Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:

figure 1 schematically shows a change of seat orientation in a seat arrangement,

figure 2 schematically shows the seating arrangement arranged in one of two possible seating directions,

figure 3 schematically shows the seat arrangement of figure 2 during a change of seat direction,

figure 4 schematically shows the seating arrangement of figure 2 arranged in another seating orientation,

figure 5 schematically shows a seating arrangement with two of the seating orientation arrangements shown,

figure 6 schematically illustrates a cushion tilt angle adjustment of the seat apparatus,

figure 7 schematically shows another view of a seating arrangement that can be arranged in two seating orientations,

figure 8 schematically shows a backrest of a seat arrangement with a displaceable headrest unit,

figure 9 schematically shows a seat arrangement with an adjustable length swing arm that can be set in two seat directions,

figure 10 schematically shows a seat arrangement with armrests that can be arranged in two seat directions,

fig. 11 schematically shows a seat arrangement with two shown seat direction settings and a three-point seat belt arrangement.

Corresponding parts are designated with the same reference numerals throughout the figures.

Fig. 1 to 11 show an embodiment of a seat arrangement 1, here in the form of a vehicle seat arrangement. The seat arrangement 1 has a longitudinal direction x, a transverse direction y and a vertical direction z. The seat arrangement 1 described here as an example and described below allows the seat direction SR to be changed, in particular to be swiveled, as shown in particular in fig. 1.

In the example shown, the seat arrangement 1 is installed in a vehicle, wherein for the sake of overview only the vehicle floor FB of the vehicle is shown. In the example shown, the seat arrangement 1 is arranged in the vehicle in such a way that the longitudinal direction x of the seat arrangement 1 corresponds to the vehicle longitudinal direction and thus to the travel direction FR of the vehicle. The transverse direction y of the seat arrangement 1 thus corresponds to the vehicle transverse direction, while the vertical direction z of the seat arrangement 1 corresponds to the vehicle vertical direction. The seat direction SR can thus be adjusted by means of the seat arrangement 1 in such a way that it is oriented in the direction of travel FR, that is to say toward the front of the vehicle, or in opposition to the direction of travel FR, that is to say toward the rear of the vehicle.

The seat arrangement 1 comprises a seat cushion 2 having a cushion front side 2.1 extending in the transverse direction y of the seat arrangement 1 and a cushion rear side 2.2 extending in the transverse direction y of the seat arrangement 1. In the example shown, the seat cushion 2 rests on a seat frame 3 which is coupled, preferably movably coupled, to the vehicle floor FB, in particular in the longitudinal direction x and thus in the longitudinal direction of the vehicle (i.e. in the direction of travel FR or against the direction of travel FR), for example by rails provided on the vehicle floor FB.

For example, the seat cushion 2 has a frame, into which the seat cushion 2 is inserted or is mounted on the frame and is (preferably rotatably) coupled to the seat frame 3 by means of the frame.

The seat arrangement 1 further comprises a backrest 4 having two opposite backrest edge sides 4.1 and 4.2, which extend in the transverse direction y of the seat arrangement 1. For changing the seat direction SR, the backrest 4 can be arranged on the seat cushion front side 2.1 of the seat cushion 2 so that one of the seat directions SR occurs (as is shown in particular on the left side in fig. 1 and in fig. 2), or the backrest can be arranged on the seat cushion rear side 2.2 of the seat cushion 2 so that the opposite seat direction SR occurs (as is shown in particular on the right side in fig. 1 and in fig. 4).

To this end, i.e., in particular to change the seat direction SR, the backrest 4 can be mounted so as to be rotatable by at least 180 ° about a transverse axis QA extending in the transverse direction y of the seat arrangement 1, in particular as shown from left to right in fig. 1 and in fig. 2 to 4 and as schematically illustrated centrally in fig. 1 by means of a rotation arrow DP. Fig. 1 and 2-4 illustrate the process of changing the seat direction SR. In the left side of fig. 1 and fig. 2, the backrest 4 is arranged at the rear side 2.2 of the seat cushion. In the centre of fig. 1 and in fig. 3, the backrest 4 has been detached from the rear side 2.2 of the seat cushion and is half-turned, i.e. for example turned through approximately 90 °. On the right in fig. 1 and in fig. 4, the backrest 4 is completely inverted, i.e. rotated by at least 180 ° and is arranged on the front side 2.1 of the seat cushion.

The backrest 4 thus has a backrest front face 4.3 on which the passenger I rests and a backrest rear face 4.4 which is opposite thereto and is not provided for resting, wherein the backrest 4 is mounted so as to be pivotable about the transverse axis QA for changing the seat direction SR in such a way that the backrest front face 4.3 is always oriented in the seat direction SR, i.e. facing the seat cushion 2, not only when the backrest 4 is arranged on the seat cushion front side 2.1 of the seat cushion 2, but also when the backrest 4 is arranged on the seat cushion rear side 2.2 of the seat cushion 2.

The seat arrangement 1 can be designed (as shown in fig. 11, for example) as a single-person seat or (as shown in fig. 2-4 and 7, for example) as a multi-person seat (here a double seat), i.e. as a separate seat (in particular a separate vehicle seat) with only one seat, i.e. for only one passenger I, or as a ganged seat/bench seat and in particular a vehicle ganged seat with a plurality of seats, in the example shown two seats, i.e. for a multi-position passenger I, in the example shown two seats side by side.

The seat arrangement 1 can be designed, for example, as a vehicle front seat or a vehicle rear seat or as a front row seat or a rear row seat, i.e. arranged in accordance with a first row seat, a second row seat or other rows of seats of the vehicle. A vehicle may have one or more such seat arrangements 1, for example.

Advantageously, at least one headrest unit 5 is arranged on the backrest 4 so as to be movable beyond the respective backrest edge side 4.1,4.2 facing away from the seat cushion 2 and so as to be movable back under said backrest edge side 4.1,4.2, as is schematically illustrated in fig. 1, 7, 8 and 11 by means of a movement arrow VP. Advantageously, each seat is provided with only one such headrest unit 5, in the case of a seat arrangement 1 in the form of a single-person chair, correspondingly only one headrest unit 5, and in the case of a seat arrangement 1 in the form of a multi-person chair, each seat is provided with one headrest unit 5, as is shown in the example shown here. The respective headrest unit 5 is, for example, arranged in the backrest 4, i.e. integrated in the backrest, in particular is moved into the backrest, and can be moved out of the backrest in this manner in sections, i.e. beyond the respective backrest edge side 4.1, 4.2.

The headrest unit 5 or the respective headrest unit 5 is thus moved upwards beyond the respective backrest edge sides 4.1,4.2 facing away from the seat cushion 2 in accordance with the set seat direction SR and thus in accordance with the respective orientation of the backrest 4. During a change of the seat direction SR, the headrest unit 5 is correspondingly retracted, and, after a reorientation of the backrest 4 at the seat cushion 2 has been effected, it is moved upwards beyond the other backrest edge side 4.2, 4.1 which now faces away from the seat cushion 2, as shown in fig. 1.

The backrest 4 is mounted in particular rotatably on two lateral pivot arms 6, the backrest 4 being pivotable about a transverse axis QA, and the transverse axis QA being pivotable by means of the pivot arms 6 toward the front seat cushion side 2.1 and toward the rear seat cushion side 2.2, as is shown in particular in fig. 1 to 4. The pivoting backrest 4 will thereby be displaced in a simple manner from the seat cushion front side 2.1 to the seat cushion rear side 2.2 or vice versa.

Each swivel arm 6 is mounted on the seat frame 3 so as to be rotatable about a swivel axis SA, for example, and the swivel arm shaft is directly articulated on the seat frame 3 or on a frame of the seat cushion 2 mounted on the seat frame 3 so as to be rotatable. The oscillation of the oscillating arm 6 is schematically illustrated in fig. 5 by means of an oscillation arrow SP.

In one possible embodiment, the length of the swing arm 6 is variable, as shown in fig. 9. For example, the pivoting arms 6 are each designed to be telescopic, i.e., they each have two or more pivoting arms that can be moved relative to one another, e.g., nested into one another. This makes it possible in particular to adjust the backrest inclination angle of the backrest 4, as indicated in fig. 4 by the backrest inclination adjustment arrow LP.

The seat cushion inclination angle of the seat cushion 2 is preferably adjustable, as seen from left to right in fig. 1, as schematically shown in fig. 5 by the seat cushion inclination adjustment arrow KP, and also as shown in fig. 6. Fig. 6 shows the seat cushion 2 at two different seat cushion inclination angles. In this way, the seat cushion inclination angle can be adjusted, in particular, depending on the arrangement of the backrest 4 on the seat cushion front side 2.1 or the seat cushion rear side 2.2, such that the respective seat cushion 2 side on which the backrest 4 is located is arranged, for example, slightly deeper than the respective other side of the seat cushion 2. For this purpose, the seat cushion 2 is mounted on the seat frame 3 so as to be rotatable as described above, in the example shown about a cushion pivot axis KA. For example, the seat cushion inclination angle may be adjusted in the range of +8 ° to-8 °.

The adjustability of the seat cushion angle and/or the backrest angle in particular allows a convenient and ergonomic seat arrangement for each set seat direction SR.

In one possible embodiment, the seat arrangement 1 has at least one pivotable armrest 7, in particular pivotable relative to the backrest 4, as shown in fig. 10. The pivoting movement of the armrest 7 when the seat direction SR changes is schematically illustrated by the armrest pivoting arrow AP.

By means of the armrests 7, passenger comfort is increased, wherein only one armrest 7 is required or only one armrest 7 is required, for example for each arm of the passenger I, since the armrests 7 are pivotable and can therefore be pivoted depending on the orientation and positioning of the backrest 4. For example one armrest 7 or two armrests 7 per seat. For example, the armrest 7 or the corresponding armrest 7 can be pivotably mounted on the backrest 4 or on the pivot arm 6.

The handrail 7 or the corresponding handrail 7 is designed, for example, as an angle, in particular at least substantially right-angled, as shown in fig. 10. The pivot axis for pivoting the armrest 7 is advantageously located in the region of an angular base point 7.1, from which two angular base legs 7.2 extend. In this way, depending on the orientation of the backrest 4, one of the two corner legs 7.2 forms an arm rest for the armrest 7, while the other corner leg 7.2 rests against the backrest 4, for example, so that the armrest 7 rests on the backrest 4.

In the example shown in fig. 10, the backrest 4 is arranged on the rear side 2.2 of the seat cushion. One of the corner legs 7.2 projects from the backrest 4 and forms an arm rest for the passenger I, while the other corner leg 7.2 rests against the backrest 4 and supports the armrest 7, for example. When the seat direction SR changes, i.e. when the backrest 4 is rotated in the described manner and is disposed on the front side 2.1 of the seat cushion, the armrest 7 is also rotated, so that the corner leg 7.2 which projects from the backrest 4 in fig. 10 and forms an arm rest for the occupant I now, for example, bears against the backrest 4 and supports the armrest 7, while the other corner leg 7.2 which bears against the backrest 4 and supports the armrest 7 in fig. 10, for example, then projects from the backrest 4 and forms an arm rest for the occupant I.

In one possible embodiment, the seat arrangement 1 has at least one three-point seat belt arrangement 8 with two buckles 8.1 and 8.2, as shown in fig. 11. The buckles 8.1,8.2 are each arranged in the region of one of the backrest edge sides 4.1,4.2 of the backrest 4, so that one of the two buckles 8.1,8.2 is always in place in the region of the seat cushion 2, depending on the positioning and orientation of the backrest 4 on the seat cushion front side 2.1 or the seat cushion rear side 2.2. By means of the two buckles 8.1,8.2, the locking tongue can be locked in the buckles 8.1,8.2, which are respectively located in the corresponding regions of the seat cushion 2 and the backrest 4, depending on the orientation and the arrangement of the backrest 4 on the front seat cushion side 2.1 or the rear seat cushion side 2.2, in order to adapt the belt 8.3 to the three-point course of a conventional three-point safety belt, i.e. with a belt section and a shoulder belt section.

Fig. 11 shows the belt 8.3 in a non-use condition, in which the locking tongue is unlocked and the belt 8.3 is positioned at one of the side edge regions of the backrest 4, and in a use condition, respectively; in the use position, the locking tongues are locked in the respective buckle 8.1,8.2, thus forming a three-point arrangement with the belt 8.3. The belt 8.3 extends through two lateral belt hinge points 8.4, 8.5 and a locking tongue, respectively, which is locked in one of said buckles 8.1,8.2 in the situation of use.

The lateral belt hinge points 8.4, 8.5 are located in the region of the side edges of the backrest 4, in each case in the region of one of the respective backrest edge sides 4.1, 4.2. The buckles 8.1,8.2 are located in the opposite side edge regions of the backrest 4.

Depending on the orientation and positioning of the backrest 4, which is determined by the respective seat direction SR, one belt pivot point 8.4, 8.5 is located on the upper side of the backrest 4 and the other belt pivot point 8.5, 8.4 is located on the lower side of the backrest, as shown in fig. 11, which shows the two seat directions SR and the respective orientation and arrangement of the backrest 4 on the seat cushion front side 2.1 or the seat cushion rear side 2.2 in fig. 11. Depending on the orientation and positioning of the backrest 4, which is determined by the respective seat direction SR, one of the buckles 8.1 or the other buckle 8.2 is used, i.e. the respective buckle 8.1,8.2 in the region of the seat cushion 2 is used.

Suitably, the seat arrangement 1 has a corresponding locking unit for effecting the described adjustment movement of the components of the seat arrangement 1 and locking the seat arrangement 1 after a successful adjustment in order to avoid undesired movements. This relates in particular to a locking unit for enabling or disabling: a pivoting movement of the backrest 4 and/or a reclining movement of the seat cushion 2 and/or a reclining movement of the backrest 4 and/or a pivoting movement of the respective armrest 7 and/or a displacement movement of the respective headrest unit 5 and/or a displacement of the seat arrangement 1 on the vehicle floor FB.

For example, a plurality of locking units therein cooperate and/or a plurality of adjustment mechanisms cooperate, so that, for example, the seat cushion inclination angle, the respective headrest unit 5 and/or the respective armrest 7 and/or the seat arrangement 1 is adjusted accordingly while the seat direction SR is changed, for example by turning and positioning the backrest 4, wherein the respective locking unit is unlocked and then locked again before the respective movement.

Such a locking unit for locking the backrest 4 is shown, for example, in fig. 5. It comprises locking elements 9 arranged on the back edge sides 4.1,4.2 of the back 4 and corresponding locking elements 10 arranged on the front cushion side 2.1 and the rear cushion side 2.2 of the seat cushion 2. Depending on the width of the seat arrangement 1 in the transverse direction y, two, three or more

such locking elements

9, 10 can be provided, for example, on the respective backrest edge sides 4.1,4.2 of the backrest 4 and on the cushion front side 2.1 and cushion rear side 2.2 of the seat cushion 2, which locking elements are distributed in the transverse direction y.

In the example shown, the locking elements 9 on the backrest 4 are each designed, for example, as a eyelet, while the corresponding locking elements 10 on the seat cushion 2 are each designed, for example, as a latch or a locking projection. A change-over or other design of the

locking elements

9, 10 is also possible.

The solution allows a flexible seating concept for vehicles, in particular autonomous vehicles or at least vehicles which can be operated in an autonomous mode at times.

For example, the vehicle is a vehicle that can be used not only as a so-called utility vehicle but also as a private car. The common vehicle travels, for example, along a predetermined route, and persons who are not acquainted and who prefer as many private atmospheres as possible get on the vehicle. In this case, the seat direction SR can be adjusted in such a way that the passengers I do not sit opposite but all sit in the same seat direction SR, for example all in the direction of travel FR.

If the vehicle is used as a private car, for example, rented by a group of people who are acquainted and who want to communicate and interact with each other during driving, the seat direction SR can be changed in such a way that the passenger I sits opposite.

It is particularly advantageous if the seat arrangement 1 is located in a fully autonomous vehicle, where no pedals and no steering wheel are present. A corresponding change of the seat direction SR can then be carried out, in particular for one or more seat arrangements 1 of the front seats, in order to achieve an orientation towards the rear seats, so that two passengers I, for example, sitting on the seat arrangement 1 of the front seats, which is formed in a ganged manner, are situated opposite one another with respect to two passengers I sitting on the rear seats. If a more private ambience is desired, the seat direction SR of the seat arrangement 1 of the front seat can be changed again, so that all passengers I are seated again in the direction of travel FR.

This can be done in the manner described above even in the case of a vehicle which is operated only occasionally in the automatic driving mode, for example in the case of the seat arrangement 1 which is designed as a driver's seat or the seat arrangement 1 which is designed as a front seat. During manual driving operation, the seat direction SR is oriented according to the driving direction FR, so that the driver faces, for example, the steering wheel and the pedals and can steer the vehicle, while during automatic driving operation, the seat direction SR can be changed so that the driver faces and can communicate and interact with the rear passenger I.

In order to allow passengers I to board and disembark from the transport vehicle in both seating directions SR of the seating arrangement 1, the transport vehicle advantageously has a correspondingly large door opening.

Claims

1. Seat arrangement (1), in particular a vehicle seat arrangement, comprising a seat cushion (2) having a cushion front side (2.1) extending in a transverse direction (y) of the seat arrangement (1) and a cushion rear side (2.2) extending in the transverse direction (y) of the seat arrangement (1), and a backrest (4) having two opposite backrest edge sides (4.1,4.2) extending in the transverse direction (y) of the seat arrangement (1), respectively, wherein the backrest (4) can be placed on the cushion front side (2.1) and the cushion rear side (2.2) of the seat cushion (2) for changing a seat direction (SR), wherein the backrest (4) is mounted so as to be rotatable about a transverse axis (QA) by at least 180 DEG for changing the seat direction (SR), characterized in that at least one headrest unit (5) is arranged on the backrest (4) in a displaceable manner, so that the headrest unit can be moved beyond the respective backrest edge side (4.1,4.2) facing away from the seat cushion (2) and can be moved back under the backrest edge side (4.1, 4.2).

2. The seat arrangement (1) according to one of the preceding claims, characterized in that the backrest (4) is rotatably mounted on two lateral swing arms (6), wherein the backrest (4) can be rotated about a transverse axis (QA) which can be swung by means of the swing arms (6) towards the front side (2.1) of the seat cushion and towards the rear side (2.2) of the seat cushion.

3. The seat arrangement (1) according to claim 2, characterized in that the length of the swing arm (6) is variable.

4. The seat arrangement (1) according to one of the preceding claims, characterized in that the seat cushion inclination angle of the seat cushion (2) is adjustable.

5. The seat arrangement (1) according to one of the preceding claims, characterized in that at least one pivotable armrest (7) is provided.

6. The seat arrangement (1) according to one of the preceding claims, characterized in that at least one three-point seat belt arrangement (8) with two buckles (8.1,8.2) is provided.

7. The seat arrangement (1) according to claim 6, characterized in that the buckles (8.1,8.2) are each arranged in a corresponding area of one of the backrest edge sides (4.1,4.2) of the backrest (4).

8. A vehicle having at least one seat arrangement (1) according to one of the preceding claims.

9. Vehicle according to claim 8, characterized in that the seat arrangement (1) is displaceably arranged on the vehicle Floor (FB).